UV Textures being distorted on rendering
Your problem appears to be the UV coordinates you have assigned.

Select your "Panel" material. Click the textures tab. Scroll down to "Mapping". Set coordinates from "Generated" to "UV".

This will solve the issue.

To clarify the problem:

When you generate UV coordinates, you also have to go into the Texture's settings, and say you want to use those UV coordinates to map it, not the default generated coordinates.